/*******************************************************************************************
 * Copyright (c) 2006-2009 Alex Robson, Rob Simmons, Craig Israel, and Rachel Twyford
 *
 * Use of this software in any form requires that you have both 
 * read and agreed to the following terms:
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions: 
 *
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the 
 * documentation and/or other materials provided with the distribution.
 * Neither the name of Nvigorate nor the names of its contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL ANY CONTRIBUTOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ****************************************************************************************/

using System;
using System.Collections.Generic;
using Nvigorate.Relational.Mapping.Interface;

namespace Nvigorate.Relational.Mapping.Index
{
    /// <summary>
    /// A class to handle managing the relationship between source
    /// and map index. Has several common bits of functionality to
    /// reduce repetition
    /// </summary>
    public class RepositoryMapIndex : IRepositoryMapIndex
    {
        private IMapIndex _mapIndex;
        private string _repositoryName;

        public IMapIndex MapIndex
        {
            get { return _mapIndex; }
            set { _mapIndex = value; }
        }

        public string RepositoryName
        {
            get { return _repositoryName; }
            set { _repositoryName = value; }
        }

        public IBindingMap GetMap<T>()
        {
            return GetMap(typeof(T));
        }

        public IBindingMap GetMap(Type type)
        {
            try
            {
                return _mapIndex[_repositoryName,type];
            }
            catch (Exception e)
            {
                throw new MapIndexException("No map found for type {0} for source {1}", type.FullName, _repositoryName);
            }
        }

        public bool HasMap<T>()
        {
            return HasMap(typeof(T));
        }

        public bool HasMap(Type type)
        {
            return _mapIndex.HasBindingMap(type, _repositoryName);
        }

        public bool CanDelete<T>()
        {
            return CanDelete(typeof (T));
        }

        public bool CanDelete(Type type)
        {
            return GetMap(type).CanDelete;
        }

        public bool CanInsert<T>()
        {
            return CanInsert(typeof(T));
        }

        public bool CanInsert(Type type)
        {
            return GetMap(type).CanInsert;
        }

        public bool CanSelect<T>()
        {
            return CanSelect(typeof (T));
        }

        public bool CanSelect(Type type)
        {
            return GetMap(type).CanSelect;
        }

        public bool CanUpdate<T>()
        {
            return CanUpdate(typeof (T));
        }

        public bool CanUpdate(Type type)
        {
            return GetMap(type).CanUpdate;
        }

        public IEnumerable<ITargetRelationship> GetRelationshipsForType(Type type)
        {
            return _mapIndex.GetRelationshipsForType(type, _repositoryName);
        }

        public RepositoryMapIndex(IMapIndex mapIndex, string repositoryName)
        {
            _mapIndex = mapIndex;
            _repositoryName = repositoryName;
        }
    }
}